<template>
  <el-menu
    default-active="1-4-1"
    class="el-menu-vertical-demo"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04d"
    @open="handleOpen"
    @close="handleClose"
    :collapse="isCollapse"
  >
  <h3>通用后台管理系统</h3>
    <el-menu-item :index="item.path" v-for="item in  noChildren" :key="item.path">
      <i :class="'el-icon-'+item.icon"></i>
      <span slot="title">{{item.lable}}</span>
    </el-menu-item>

    <el-submenu  v-for="item in hasChildren" :key="item.path" :index="item.path">
      <template slot="title">
        <i :class="'el-icon-'+item.icon"></i>
        <span slot="title">{{item.lable}}</span>
      </template>
      <el-menu-item-group  v-for="(subItem) in item.children" :key="subItem.path">
       
        <el-menu-item :index="subItem.path">{{subItem.lable}}</el-menu-item>
      </el-menu-item-group>
      
    </el-submenu>
  </el-menu>
</template>

<style lang="less" scoped>


.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
 
}
 .el-menu {
   height: 100%;
   border:none;
   h3 {
    color: #fff;
    text-align: center;
    line-height: 48px;
   }
  
  }
</style>

<script>
export default {
  name: "CommonAside",
  data() {
    return {
      isCollapse: false,
      menu: [
        {
          path: "/",
          name: "home",
          lable: "首页",
          icon: "s-home",
          url: "Home/Home",
        },
        {
          path: "/mall",
          name: "mall",
          lable: "商品管理",
          icon: "video-play",
          url: "MallMange/MallMange",
        },
        {
          path: "/user",
          name: "user",
          lable: "用户管理",
          icon: "user",
          url: "UserMange/UserMange",
        },
        {
          lable: "其他",
          icon: "location",
          children: [
            {
              path: "/page1",
              name: "page1",
              lable: "页面1",
              icon: "setting",
              url: "Other/PageOne",
            },
            {
              path: "/page2",
              name: "page2",
              lable: "页面2",
              icon: "setting",
              url: "Other/PageTwo",
            },
          ],
        },
      ],
    };
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
  },
  computed: {
    noChildren() {
      return this.menu.filter((item) => !item.children);
    },
    hasChildren(){
       return this.menu.filter((item) => item.children);
    }
  },
};
</script>